JPH0472694B2 - - Google Patents
Info
- Publication number
- JPH0472694B2 JPH0472694B2 JP59010526A JP1052684A JPH0472694B2 JP H0472694 B2 JPH0472694 B2 JP H0472694B2 JP 59010526 A JP59010526 A JP 59010526A JP 1052684 A JP1052684 A JP 1052684A JP H0472694 B2 JPH0472694 B2 JP H0472694B2
- Authority
- JP
- Japan
- Prior art keywords
- heat
- fluid lubricant
- base paper
- platen roller
- paper
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000000314 lubricant Substances 0.000 claims description 38
- 239000012530 fluid Substances 0.000 claims description 35
- 238000000034 method Methods 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 description 16
- 229920006257 Heat-shrinkable film Polymers 0.000 description 11
- 229920006300 shrink film Polymers 0.000 description 9
- 241000519995 Stachys sylvatica Species 0.000 description 7
- 239000003795 chemical substances by application Substances 0.000 description 7
- 239000000155 melt Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 229920002545 silicone oil Polymers 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
- B41C1/00—Forme preparation
- B41C1/14—Forme preparation for stencil-printing or silk-screen printing
- B41C1/144—Forme preparation for stencil-printing or silk-screen printing by perforation using a thermal head
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Manufacture Or Reproduction Of Printing Formes (AREA)
Description
【発明の詳細な説明】
技術分野
本発明は、感熱孔版製版機における流動性潤滑
剤層の形成方法に関する。DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to a method for forming a fluid lubricant layer in a heat-sensitive stencil maker.
従来技術
一般に、この種の感熱孔版製版機は、第１図に
示すように、多孔質ベース１ａ上に熱収縮フイル
ム１ｂを設けてなる感熱孔版原紙１をサーマルヘ
ツド２の発熱素子２ａで穿孔して製版するもので
ある。この場合、プラテンローラ３により原紙１
をヘツド２表面に押付けながら製版するので、原
紙溶融物４ａが発熱素子２ａ近傍に固着し、それ
が製版回数を重ねる度に増えて、同図ａに示すよ
うに発熱素子２ａを覆つてしまつたり、同図ｂに
示すように発熱素子２ａと熱収縮フイルム１ｂと
の密着性が悪くなる。このため、発熱素子２ｂの
熱が熱収縮フイルム１ｂに伝わりにくくなり、画
像の白ヌケ等の発生が生ずる。BACKGROUND TECHNOLOGY In general, this type of thermal stencil making machine, as shown in FIG. The plate is made by hand. In this case, the base paper 1 is
Since the plate is made while being pressed against the surface of the head 2, the molten base paper 4a sticks to the vicinity of the heating element 2a, increases with each plate making, and covers the heating element 2a as shown in FIG. Otherwise, the adhesion between the heating element 2a and the heat-shrinkable film 1b deteriorates, as shown in FIG. Therefore, the heat of the heating element 2b is difficult to be transmitted to the heat-shrinkable film 1b, resulting in the occurrence of white spots on the image.
そこで、従来、第２図に示すように和紙等の薄
い紙（又はフイルム）５を発熱素子２ａ表面と熱
収縮フイルム１ｂとの間に介在させつつ製版する
ようにしたものが特開昭55−103957号公報により
示されている。ところが、この方式の場合、紙５
等の介在物を入れるため、発熱素子２ａ・熱収縮
フイルム１ｂ間の熱伝導効率が著しく低下し、熱
収縮フイルム１ｂの開口率がかなり悪くなり、場
合によつては全く穿孔できないこともある。 Therefore, conventionally, as shown in FIG. 2, a method was proposed in which a thin paper (or film) 5 such as Japanese paper was interposed between the surface of the heating element 2a and the heat shrink film 1b during plate making. This is shown in Publication No. 103957. However, in this method, paper 5
Because of the inclusion of such inclusions, the heat conduction efficiency between the heating element 2a and the heat-shrinkable film 1b is significantly reduced, and the aperture ratio of the heat-shrinkable film 1b is considerably reduced, and in some cases, it may not be possible to perforate at all.
又、第３図に示すように、熱収縮フイルム１ｂ
上にオーバーコート層１ｃを設けた感熱孔版原紙
１Aを用い、熱収縮フイルム１ｂのはがれや固着
をこのオーバーコート層１ｃにより防ぐようにし
たものもある。この方式によれば、オーバーコー
ト層の働きで熱収縮フイルム１ｂのはがれや発熱
素子２ａへの固着はある程度防げるが、オーバー
コート剤そのものが発熱素子２ａの後側に固着
し、画像白ヌケを発生させる場合がある。これ
は、オーバーコート層１ｃの材質や量によつて
は、オーバーコート層がない場合よりも画像白ヌ
ケの発生状況がひどくなる（第１図ｂはこのオー
バーコート剤４ｂによる白ヌケ発生を示すもので
ある）。 Moreover, as shown in FIG. 3, a heat shrink film 1b
There is also one in which a heat-sensitive stencil paper 1A having an overcoat layer 1c provided thereon is used, and the overcoat layer 1c prevents the heat-shrinkable film 1b from peeling off or sticking. According to this method, the overcoat layer can prevent the heat-shrinkable film 1b from peeling off or sticking to the heating element 2a to some extent, but the overcoating agent itself sticks to the rear side of the heating element 2a, causing white spots in the image. There may be cases where This means that depending on the material and amount of the overcoat layer 1c, the occurrence of white spots on the image becomes worse than when there is no overcoat layer (Figure 1b shows the occurrence of white spots due to the overcoat agent 4b). ).
目 的
本発明は、熱収縮フイルムの溶融物やオーバー
コート剤の発熱素子表面への固着を防止して製版
時の白ヌケをなくすために、原紙と発熱ヘツドと
の間に流動性潤滑剤層を均一に形成することがで
きるようにした感熱孔版製版機における流動性潤
滑剤層の形成方法を提供することを目的とするも
のである。Purpose The present invention provides a fluid lubricant layer between the base paper and the heat generating head in order to prevent melted heat shrink film and overcoating agent from sticking to the surface of the heat generating element and eliminate white spots during plate making. It is an object of the present invention to provide a method for forming a fluid lubricant layer in a heat-sensitive stencil plate making machine, which can uniformly form a fluid lubricant layer.
構 成
本発明は、感熱孔版原紙をプラテンローラによ
り発熱ヘツドに押圧し、この発熱ヘツドの発熱素
子により穿孔して製版する感熱孔版製版機におい
て、１版製版毎に原紙の製版部分の前側の一部に
画像幅全幅にわたつて１回製版に必要な量の流動
性潤滑剤を全部塗布し、前記プラテンローラによ
る前記原紙の送りを行なつて前記原紙と前記発熱
ヘツドとの間の空間に前記流動性潤滑剤をストツ
クさせ、前記プラテンローラによる前記原紙の送
りに伴つて前記原紙と前記発熱ヘツドとの間に前
記流動性潤滑剤を微量ずつ供給して薄い流動性潤
滑剤層を形成するようにしたものである。したが
つて、原紙の全面に均一に流動性潤滑剤層を形成
することができ、これにより、熱収縮フイルムの
溶融物やオーバーコート剤の発熱素子表面への固
着を防止して製版時の白ヌケをなくすことができ
るように構成したものである。Structure The present invention provides a heat-sensitive stencil making machine in which a heat-sensitive stencil sheet is pressed against a heat-generating head by a platen roller and perforated by a heat-generating element of the heat-generating head to make a stencil. The amount of fluid lubricant required for plate making is applied once to the entire image width, and the base paper is fed by the platen roller to fill the space between the base paper and the heat generating head. The fluid lubricant is stored, and as the base paper is fed by the platen roller, the fluid lubricant is supplied little by little between the base paper and the heating head to form a thin fluid lubricant layer. This is what I did. Therefore, it is possible to form a fluid lubricant layer uniformly over the entire surface of the base paper, which prevents the melt of the heat shrink film and the overcoat agent from sticking to the surface of the heat generating element and improves whiteness during plate making. It is designed to eliminate omissions.
実施例
本発明の一実施例を第４図及び第５図に基づい
て説明する。本実施例は、原紙１の熱収縮フイル
ム１ｂ（第３図のようにオーバーコート層１ｃが
あつてもよい）上に、シリコンオイル等の耐熱性
を有する流動性潤滑剤６を付着させてなるもので
ある。このような原紙１がプラテンローラ３によ
つてサーマルヘツド２表面に押しつけられながら
搬送される。このとき、流動性潤滑剤６は熱収縮
フイルム１ｂ（又はオーバーコート層１ｃ）面と
サーマルヘツド２表面とにより絞られ、油膜潤滑
と同様な効果により、極く薄い流動性潤滑剤層６
ａが発熱素子２ａ・熱収縮フイルム１ｂ間に形成
される。このような状態で、発熱素子が発熱し原
紙１が製版されると、熱収縮フイルム１ｂが溶け
ても流動性潤滑剤層６ａが存在するので、サーマ
ルヘツド２上に固着することはない。又、オーバ
ーコート剤１ｃによるものはそれが溶けても、オ
イル中に混じつて発熱素子２ａ後段へ運ばれるの
で、やはりサーマルヘツド２表面上には固着しな
い。このようにして、流動性潤滑剤層６ａの存在
により発熱素子２ａ上に熱収縮フイルム１ｂやオ
ーバーコート剤が固着せず、熱収縮フイルム１ｂ
との密着性が確保されるので、画像白ヌケを防止
し易い。又、流動性潤滑剤層６ａは数μｍ以下と
極めて薄いので、熱伝導効率が、シリコンオイル
等を塗らない場合（第１図）と殆んど変わらない
ので、製版品質、特に熱収縮フイルム１ｂの開口
率を低下させることはない。なお、流動性潤滑剤
６としては、シリコンオイルに限らず、熱伝導率
がよくて流動性を有し400℃程度の熱で変成せず
サーマルヘツド２に固着しないものであればよ
い。Embodiment An embodiment of the present invention will be described based on FIGS. 4 and 5. In this embodiment, a heat-resistant fluid lubricant 6 such as silicone oil is adhered onto a heat-shrinkable film 1b of a base paper 1 (which may have an overcoat layer 1c as shown in FIG. 3). It is something. The base paper 1 is conveyed while being pressed against the surface of the thermal head 2 by the platen roller 3. At this time, the fluid lubricant 6 is squeezed by the surface of the heat shrink film 1b (or overcoat layer 1c) and the surface of the thermal head 2, and due to an effect similar to oil film lubrication, the fluid lubricant 6 becomes extremely thin.
A is formed between the heating element 2a and the heat shrink film 1b. In this state, when the heating element generates heat and the base paper 1 is made into a plate, even if the heat shrink film 1b melts, it will not stick to the thermal head 2 because the fluid lubricant layer 6a exists. Moreover, even if the overcoat agent 1c melts, it will not stick to the surface of the thermal head 2 since it will be mixed with the oil and carried to the downstream stage of the heating element 2a. In this way, due to the presence of the fluid lubricant layer 6a, the heat-shrinkable film 1b and the overcoat agent do not stick to the heating element 2a, and the heat-shrinkable film 1b
Since adhesion with the film is ensured, it is easy to prevent white spots in the image. In addition, since the fluid lubricant layer 6a is extremely thin at several micrometers or less, the heat conduction efficiency is almost the same as that without applying silicone oil (Fig. 1), so the plate-making quality, especially the heat-shrinkable film 1b, is very low. The aperture ratio will not be reduced. Note that the fluid lubricant 6 is not limited to silicone oil, and may be any material that has good thermal conductivity, fluidity, is not denatured by heat of about 400° C., and does not stick to the thermal head 2.
ところで、シリコンオイル等の流動性潤滑剤６
を原紙１表面に塗布する方法を第５図に示す。ま
ず、薄い流動性潤滑剤層６ａを形成する目的で、
原紙１表面に流動性潤滑剤６を塗布するとき、原
紙１表面に必要な厚み分だけ塗ろうとするとその
厚みが前述したように数μｍ以下と極めて薄いの
で、ゴムローラやスポンジローラ等で全面均一に
塗布するのは難しく、塗布されない部分が出やす
い。そこで、本実施例では、第５図ａに示すよう
に１版製版毎に原紙１の製版部分（矢印Ａで示
す）の前側の一部に画像幅全幅にわたつて１回製
版に必要な量の流動性潤滑剤６を全部塗布してお
き、この状態でプラテンローラ３による原紙１送
りを行ない、同図ｂに示すように原紙１・ヘツド
２間のくさび状空間にこの流動性潤滑剤６をスト
ツクさせ、発熱素子２ａ・熱収縮フイルム１ｂ間
に微量ずつ供給させて、第４図で示したように極
めて薄い流動性潤滑剤層６ａを形成させるもので
ある。 By the way, fluid lubricants such as silicone oil6
FIG. 5 shows a method of coating the surface of the base paper 1. First, for the purpose of forming a thin fluid lubricant layer 6a,
When applying the fluid lubricant 6 to the surface of the base paper 1, if you try to apply it to the required thickness on the surface of the base paper 1, the thickness is extremely thin, several μm or less, as described above, so use a rubber roller, sponge roller, etc. to spread it evenly over the entire surface. It is difficult to apply, and there are often areas that are not coated. Therefore, in this embodiment, as shown in FIG. The fluid lubricant 6 is applied completely, and in this state, the base paper 1 is fed by the platen roller 3, and the fluid lubricant 6 is applied to the wedge-shaped space between the base paper 1 and the head 2, as shown in FIG. A very thin fluid lubricant layer 6a is formed as shown in FIG. 4 by supplying a small amount of lubricant between the heating element 2a and the heat shrinkable film 1b.
なお、原紙１に対する１版製版に要する１回分
の流動性潤滑剤６の供給塗布方法としては、第６
図ａに示すように前段に設けたローラ７に対し一
定隙間をもつて近接させたブレード８を設けて、
ローラ７を回転させながらこのローラ７表面に一
定厚みの流動性潤滑剤層６ａを塗布形成し、これ
をローラ７の上方変位により原紙１に一定時間押
しつけて行なうようにしてもよい。同図ｂのよう
に中間ローラ９を介在させてもよい。又、同図ｃ
に示すように、ブレード８に代えて弾性を有する
ブレード１０を一定圧力でローラ７に押しつけて
ローラ７表面に一定厚みの潤滑剤層６ａを形成す
るようにしてもよい。 The method for supplying and applying the fluid lubricant 6 for one time required for one plate making to the base paper 1 is as follows.
As shown in Figure a, a blade 8 is provided close to the roller 7 provided at the front stage with a certain gap,
The fluid lubricant layer 6a having a constant thickness may be applied and formed on the surface of the roller 7 while rotating the roller 7, and this may be performed by pressing the layer 6a against the base paper 1 for a certain period of time by upward displacement of the roller 7. An intermediate roller 9 may be interposed as shown in FIG. Also, the same figure c
As shown in FIG. 2, instead of the blade 8, an elastic blade 10 may be pressed against the roller 7 with a constant pressure to form a lubricant layer 6a of a constant thickness on the surface of the roller 7.
効 果
本発明は上述のように、感熱孔版原紙をプラテ
ンローラにより発熱ヘツドに押圧し、この発熱ヘ
ツドの発熱素子により穿孔して製版する感熱孔版
製版機において、１版製版毎に原紙の製版部分の
前側の一部に画像幅全幅にわたつて１回製版に必
要な量の流動性潤滑剤を全部塗布し、前記プラテ
ンローラによる前記原紙送りを行なつて前記原紙
と前記発熱ヘツドとの間の空間に前記流動性潤滑
剤をストツクさせ、前記プラテンローラによる前
記原紙の送りに伴つて前記原紙と前記発熱ヘツド
との間に前記流動性潤滑剤を微量ずつ供給して薄
い流動性潤滑剤層を形成するようにしたので、原
紙の全面に均一に流動性潤滑剤層を形成すること
ができ、これにより、熱収縮フイルムの溶融物や
オーバーコート剤の発熱素子表面への固着を防止
して製版時の白ヌケをなくすことができると云う
効果を有する。Effects As described above, the present invention is applied to a heat-sensitive stencil-making machine in which a heat-sensitive stencil sheet is pressed against a heat-generating head by a platen roller and perforated by the heat-generating element of the heat-generating head to make a plate. The amount of fluid lubricant required for one plate making is applied to a part of the front side of the entire image width, and the base paper is fed by the platen roller to create a gap between the base paper and the heat generating head. The fluid lubricant is stored in a space, and as the base paper is fed by the platen roller, the fluid lubricant is supplied little by little between the base paper and the heat generating head to form a thin fluid lubricant layer. As a result, a fluid lubricant layer can be uniformly formed over the entire surface of the base paper, which prevents the melt of the heat shrink film and the overcoat agent from sticking to the surface of the heating element, and facilitates plate making. It has the effect of eliminating white spots during time.
第１図ないし第３図は従来例を示す側面図、第
４図は本発明の一実施例を示す側面図、第５図
ａ，ｂは潤滑剤供給塗布方法を示す側面図、第６
図ａ〜ｃは変形例を示す側面図である。
１……原紙、１ｂ……熱収縮フイルム、２……
サーマルヘツド、２ａ……発熱素子、６ａ……流
動性潤滑剤層。
1 to 3 are side views showing a conventional example, FIG. 4 is a side view showing an embodiment of the present invention, FIGS. 5 a and b are side views showing a lubricant supplying method, and FIG.
Figures a to c are side views showing modified examples. 1...Base paper, 1b...Heat shrink film, 2...
Thermal head, 2a...Heating element, 6a...Fluid lubricant layer.
Claims (1)
ツドに押圧し、この発熱ヘツドの発熱素子により
穿孔して製版する感熱孔版製版機において、１版
製版毎に原紙の製版部分の前側の一部に画像幅全
幅にわたつて１回製版に必要な量の流動性潤滑剤
を全部塗布し、前記プラテンローラによる前記原
紙の送りを行なつて前記原紙と前記発熱ヘツドと
の間の空間に前記流動性潤滑剤をストツクさせ、
前記プラテンローラによる前記原紙の送りに伴つ
て前記原紙と前記発熱ヘツドとの間に前記流動性
潤滑剤を微量ずつ供給して薄い流動性潤滑剤層を
形成するようにしたことを特徴とする感熱孔版製
版機における流動性潤滑剤層の形成方法。1. In a heat-sensitive stencil making machine that presses a heat-sensitive stencil paper against a heat-generating head using a platen roller, and makes a plate by perforating the heat-sensitive stencil paper using the heat-generating element of the heat-generating head. The amount of fluid lubricant required for plate making is applied once over several days, and the base paper is fed by the platen roller to spread the fluid lubricant into the space between the base paper and the heat generating head. Make me stock up,
The thermosensitive device is characterized in that as the base paper is fed by the platen roller, the fluid lubricant is supplied in small amounts between the base paper and the heat generating head to form a thin fluid lubricant layer. A method for forming a fluid lubricant layer in a stencil printing machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1052684A JPS60154068A (en) | 1984-01-23 | 1984-01-23 | Thermal screen printing plate making machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1052684A JPS60154068A (en) | 1984-01-23 | 1984-01-23 | Thermal screen printing plate making machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60154068A JPS60154068A (en) | 1985-08-13 |
| JPH0472694B2 true JPH0472694B2 (en) | 1992-11-18 |
Family
ID=11752691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1052684A Granted JPS60154068A (en) | 1984-01-23 | 1984-01-23 | Thermal screen printing plate making machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60154068A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6384340U (en) * | 1986-09-09 | 1988-06-02 | ||
| JP3441185B2 (en) * | 1994-09-30 | 2003-08-25 | 理想科学工業株式会社 | Perforation method of heat-sensitive stencil printing paper |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58153697A (en) * | 1982-03-10 | 1983-09-12 | Tomoegawa Paper Co Ltd | Heat-sensitive stencile paper |
-
1984
- 1984-01-23 JP JP1052684A patent/JPS60154068A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58153697A (en) * | 1982-03-10 | 1983-09-12 | Tomoegawa Paper Co Ltd | Heat-sensitive stencile paper |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60154068A (en) | 1985-08-13 |
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